There are 50 marbles of 3 colors- blue yellow and black The probability of picking up a blue marble is 3-10 and that of picking up a yellow marble is 1-2 The probability of picking up a black ball is 1-44-51-51-10

Question

Toppr Admin · Accepted Answer

P-blue-310-1550-i-e- there are 15 blue marblesP-yellow-12-2550-i-e- there are 25 yellow marbles-x2234- Number of black marbles-10-x2234- P-black-1050-15

There are 50 marbles of 3 colors: blue yellow and black The probability of picking up a blue marble is 3/10 and that of picking up a yellow marble is 1/2 The probability of picking up a black ball is
1/4
4/5
1/5
1/10

P(blue)= $\frac{3}{10} = \frac{15}{50},$ i.e., there are 15 blue marbles
P(yellow)= $\frac{1}{2} = \frac{25}{50},$ i.e., there are 25 yellow marbles
$∴$ Number of black marbles=10
$∴$ P(black)= $\frac{10}{50} = \frac{1}{5}$

There are 50 marbles of 3 colors: blue yellow and black The probability of picking up a blue marble is 3/10 and that of picking up a yellow marble is 1/2 The probability of picking up a black ball is 1/44/51/51/10

P(blue)=310=1550,i.e., there are 15 blue marblesP(yellow)=12=2550,i.e., there are 25 yellow marbles∴ Number of black marbles=10∴ P(black)=1050=15

There are 50 marbles of 3 colors: blue yellow and black The probability of picking up a blue marble is 3/10 and that of picking up a yellow marble is 1/2 The probability of picking up a black ball is
1/4
4/5
1/5
1/10

P(blue)= $\frac{3}{10} = \frac{15}{50},$ i.e., there are 15 blue marbles
P(yellow)= $\frac{1}{2} = \frac{25}{50},$ i.e., there are 25 yellow marbles
$∴$ Number of black marbles=10
$∴$ P(black)= $\frac{10}{50} = \frac{1}{5}$